Truck for harrows.



w. H. PA-RLI N. TRUCK FOR HARROWS.

APPLICATION FILED MAE. 8, 1907.

Patented Apr. 27, 1909.

3 SHEETS-SHEET 1.

animate:

Witnesses Y w. H. PARLIN. TRUCK FOR HARROWS.

APPLIOATION FILED MAR. 8, 1907. 91 9,755, v Patented Apr. 27, 1909.

3 SHEETS-SHEET 2.

mm My W. H. PARLIN.

TRUCK FOR HARROWS. 7 APPLICATION FILED MAR. 8, 1907.

$1,755, Patented Apr.27,1909.

3 SHEETS-SHEET 3.

Fig.- Q5.

fat mentor wit" aooeo UNITED OFFICE.

WILLIAM H. PARLIN, OF GANTON,'ILLIN 01S ASSIGNORTO PAR-LIN & ORENDORFF COMPANY, OF CANTON, ILLINOIS A CORPORATION OF ILLINOIS.

TRUCK FOR .HABROWS.

Application filed March 8,

To all whom it may concern:

Be it known that 1, WILLIAM H. PARLI a citizen of the United States, residing at Canton, in-the county of Fulton and'State of Illinois, have invented certain new and useful Improvement-s in Trucks for Harrows, of which the following'is aspecification.

My invention relates to improvements in harrow trucks and particularly to trucks adapted to be used with or without a tongue connection.

My primary object is to improve harrow truck attachments such that the connections will be easily made and be more efficient than-heretofore, and particularly assist in combining a loose hitch connection with the axle of the truck so arranged that while the axle has a permissible oscillating vertical. movement independent of. the loose hitch connection yet said connection will regulate the swinging lateral movement thereof.

In my improved device I employ a'downwardly extending rod,- and preferably at a point below the top of the rod there is an intermediate member supported by said rod which n'icmber is pivotally connected to the main harrow frame or stub-tongue as it is commonly called, In the arrangement shown this intermediate member lies intermediate the 1 1 per and lower part of the stub-tongue and orms a bearing for brackets connected to said stub-tongue. The hitch connection is pivotally mounted on the intermediate member and preferably at a point substantially coincident with the center of the stub: tongue. These connections are such that even without a tongue the swinging lateral motement of the truck will be controlled by the loose hitch connection,"'for'while the truck axle is pivot-ally connected to the supporting rod so that it can move in one direction independent of the rod, yet the loose hitch connection regulates the rotatable movement ofthe rod. p

I have shown preferable forms of construction, but I have not intended to limit the invention to details in construction.

In the accompanying'drawings, Figure 1 is a plan view showing the main frame of the harrow in part and the connections between the maih frame and the tongue, this view showing the tongue connection from the harrow. Fig. 2 is a side elevation of the axle and support, also showing j the Specification of Letters Patent.

' Patented April 27, 1909.

1907. Serial No. 361,363.

tongue. Fig. 3 is a detail of the truck frame. Fig. 4 is'a perspective view showing the parts in ositiou for assembling showing the usual oose hitch connection, in other words dispensing with the tongue. Fig. 5 is a detail View of the parts in assembled position, the tongue being dispensed with.

Like parts are indicated by similar characters of reference throughout the several views.

The main frame of the harrow, indicated byA, is commonly known as the stubtongue. I have not found it necessary to show a complete harrow, but this frame, A, projects forward in the usual manner and the brackets, a, are secured to the frame A.

The brackets, a, are shown secured by ordi nary bolts, a These brackets are formed with openings, a, at their free ends, these openings being greater in size than the ends of the clamps, a so that the brackets can be pivotally'connected to the clamps, a, in a manner thatwill permit the rod, a to rotate independent of the main frame, and the clamps, a, are so shaped as shown in Figs. 4 and 5 that they constitute bearings for the main frame of the truck. The clamps, a (see Fig. 4) aresecured together by a bolt a in the rear end of the clamps so that by loosening the bolt the clamps may be opened orclosed, and so arranged that when they are drawn together the upright -rod, a will be securely clamped within the opening a", and when the brackets, a, are

supported by the clamps, (1*, the stub tongue will thereby be supported by the upright rod, a There are shown bearing faces, a", at the forward free ends of the clamps, a", and short trunnions, a", project from said bearing faces. There is'an openin ,"a extending through the clamps and t e trunnions, and a bolt extending through said opening holds the clamps securely on the rod, a. I have shown the brace, 6 which constitutes a lose hitch connection, but if it is desired to employ a ton ue with the de vice the tongue, I), can rea ily be secured to the brace, b, as shown in Fig. 2. The usual evener, 6 is shown secured to the brace, 6 In order to connect the brace, b, to the intermediate or clamp members, a, so that the brace will control the rotatable movement .of the rod,-a I have shown av bearing, 6

7 formed at the rear end of the brace (that thereby securely connectmg the brace, b,

to the intermediate members, a, in a way 5 that will permit the brace to have a permissible vertical movement while controlling the rotatable movement of the rod, a When the ends of the trunnions are clamped together by the bolt, a", there will be sutficient space, however, left between the clamps to permit the brace, 6 to have the necessary permissible vertical movement. After these 1 parts have been assembled in proper position and the rod, a securely clamped to the intermediate members, a, the brackets, a, may be properly positioned on the upper and lower ends a of said intermediate members a the intermediate member and the said brackets being securely fastened to the main frame, A, of the harrow, the intermediate member will necessarily act as a bearing for the stub tongue of the harrow While also supporting the loose hitch connection of the brace, 6 the member being in turn sup ported-by the upright rod, a, which is formed at its lower end with a bracket, b, the bracket, 6 being securely held to the rod by a bolt, b (See Figs. l and 5.) The bolt, b, (Fig. 5) constitutes the axis connecting the truck axle, b, with the bracket, 6, and the opening through this -,bracket is shown elongated so that the axle has a limited amount of vertical movement independent of the bracket, If.

It is now apparent that I have shown a construction whereby an intermediate memberis employed adapted to form the bearing for the main truck frame and located between the planes of the upper and lower surfaces of the stub-tongue, and having a hitch connection pivotally supported by the intermediate member. at a point substantially coincident'with the center of the stubtongue, there being also employed a pivotal connection between the truck axle and the rod supporting the intermediate member I at one point and pivotally connected to the i truck axle zit a point below the first-mentioned point, while the hitch connection is pivotally connected to the rod by means of the intermediate member near the firsti mentioned point. Having thus described my invention, I 1 claim 1. A truck for machines of the character i mentioned, the combination of stub tongue with a rotatable supporting member, an intermediate member comprising movable clamps, and means for clamping said clamps rigidly to said supporting member at predetermined positions, a plurality of sup ports projecting from said stub tongue and pivotally supported on said intermediate member at its upper and lower ends, a truck axle pivotally connected with the supporting member, and a hitch connection pivotally connected to said intermediate member, substantially as specified.

2. A truck for machines of the character mentioned, the combination of a stub tongne with a rotatable supporting member formed approximately square in cross-section, an intermediate member conforming to the shape of said supporting member and clamped rigidly thereto, a plurality of supports rojecting'from said stub tongue and pivota ly connected to said intermediate member at its upper and lower ends, a truck axle pivotally connected to said supporting member, and a hitch connection pivotally supported within said intermediate member, substantially as specified.

3. A truck for machines of the character mentioned, the combination of a stub tongue with a rotatable supporting member, an intermediate member comprising movable clamps, and means for securing the same rigidly to said supporting member, supports for pivotally holding said stub tongue on said intermediate member, a socket formed at the lower end of the supporting member, a truck axle pivotally supported within said socket, and a hitch connection pivotally supported within said intermediate member, substantially as specified.

In testimony whereof, I have hereunto set my hand this 2d day of March 1907.

WILLIAM H. PARLIN.

Witnesses:

C. H. WAsoN, VJ. E. MOFARLAND. 

